PostgreSQL Subquery: Find the 5th maximum salary of all salaries
15. Write a subquery to find the 5th maximum salary of all salaries.
SELECT DISTINCT salary FROM employees e1 WHERE 5 = (SELECT COUNT(DISTINCT salary) FROM employees e2 WHERE e1.salary <= e2.salary);
Sample table: employees
pg_exercises=# SELECT DISTINCT salary pg_exercises-# FROM employees e1 pg_exercises-# WHERE 5 = (SELECT COUNT(DISTINCT salary) pg_exercises(# FROM employees e2 pg_exercises(# WHERE e1.salary <= e2.salary); salary ---------- 13030.00 (1 row)
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